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Reference Standards


Peak Performance™ certified reference standards

Standardize Your Standards

CPI International provides a comprehensive portfolio of reference materials and standards to support analytical testing across industries. From inorganic and organic standards to cannabis, food safety, microbiology, and environmental solutions, our selection of standards is designed to meet the diverse needs of modern laboratories.

  • Certified Reference Materials (CRMs): Produced in ISO 17034–accredited facilities for accuracy and traceability.
  • Reference Materials (RMs): Manufactured and tested in ISO/IEC 17025–accredited laboratories.
  • Application-Specific Standards: Covering spectroscopy, chromatography, mass spectrometry, microbiology, and wet chemistry methods.
  • Custom Standards: Tailored formulations to reduce workload, improve efficiency, and support regulatory compliance in your industry.

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Conductivity Standard 25,000 µS/cm
Choose from 500mL, 1L, 4L, 10L, and 20L options.
27.00 27.0 USD
68.00 68.0 USD
Buffer Solution, pH 8.00, Colorless
Choose from 500mL, 1L, 4L, 10L, and 20L options.
20.00 20.0 USD
Buffer Solution, pH 9.54, Colorless
Choose from 500mL, 1L, 4L, 10L, and 20L options.
20.00 20.0 USD
61.00 61.0 USD
131.00 131.0 USD
Cannabis Target Elements Mix B, 100mL
Item number 4400-010051
319.00 319.0 USD
61.00 61.0 USD
Canada Cannabis Pesticide Mix 1
Item number Z-G34-13CD01-01
235.00 235.0 USD
Buffer Solution, pH 9.18, Colorless
Choose from 500mL, 1L, 4L, 10L, and 20L options.
20.00 20.0 USD
1,601.00 1601.0 USD
126.00 126.0 USD
274.00 274.0 USD
83.00 83.0 USD
Custom Pesticide Mix, 30-9, 100 mg/L, 4 x 1 ml
Item number Z-131193-03-4PAK
1,010.00 1010.0 USD
Custom Pesticide Mix, 34-5, 100 mg/L, 4 x 1 ml
Item number Z-131192-03-4PAK
1,010.00 1010.0 USD
Buffer Solution, pH 9.00, Colorless
Choose from 500mL, 1L, 4L, 10L, and 20L options.
20.00 20.0 USD
32.00 32.0 USD
Benzene Solution, 100 mg/L, 1 ml
Item number Z-020146-02
23.00 23.0 USD